题目内容：

 

完成句子，使改写后的句子完整，并与原句意思相符，注意每空只填一个单词。

1. What’s your last name?

   What’s your ________ ________?

2. Can I help you?.

   ______ can I _______ for you?

3. Thank you for your letter.

   _________ for _______ a letter to me.

4. How much are the pants?

_______ __________ ________ ________ these pants?

5. He often helps me with English.

   He often helps me ______ _________.